max_connections at AWS RDS MySQL Instance Sizes

This chart shows the max_connections limit, set by AWS, at various MySQL RDS instance sizes.

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Create and Attach Azure VM Disks in PowerShell

This article is a quick overview of the commands used to create and add disks through PowerShell.  This can be especially helpful when adding many disks to the same VM.  The Azure web portal can take 1-2 minutes per disk to complete an add operation. Your PowerShell environment should be set up with the necessary permissions to your Azure account.  See this Microsoft Article for Azure cmdlets...

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Uptime Chart

All levels of web-scale IT stacks should be monitored for availability, response time, and performance. Whether self-imposed or customer-imposed, the availability SLA percentage translates to a specific amount of downtime. Industry lingo may refer to this as the number of "nines" of an application or resource. For example, 99.99 would be referred to as 4 nines.

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Windows Server Logs Flooded with SChannel events

Periodically, we notice Microsoft Server events get flooded with schannel critical events.  Depending on the environment, these can be transient errors.  On one occasion, one of our customer servers received thousands of SChannel events every hour while its virtual machine clone received none. Make sure to evaluate your environment and verify you support the appropriate protocols, cipher suites...

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Microsoft’s KB2992611 Critical SSL TLS Update Fiasco

Microsoft released KB2992611, MS14-066, a critical patch to address remote code execution schannel vulnerabilities, during the November 11, 2014 patch Tuesday.  Admins scrambled to install this zero-day update as the community feared “drive-by” attacks and many security agencies rated it as one of the most critical updates released by Microsoft.  Unfortunately, the patch broke...

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Enable TLS in Browser for Poodle Vulnerability Fix

For users who see broken websites, they need to enable newer protocol support in their browsers. These end user instructions will fix broken websites and will secure them from POODLE:

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